TOI-677

Planetary system · 462.5 light-years away

TOI-677 is 463 light-years from the Sun. The NASA Exoplanet Archive lists 1 planet around this F8 star; the first was found in 2020 by transit (Transiting Exoplanet Survey Satellite (TESS)).

Fly there in 3D

Worth knowing

TOI-677 b goes round its star every 11.2 days, 8 times as often as Mercury goes round the Sun.

The star

Spectral typeF8
Surface temperature6,295 K
Mass1.181 solar masses
Radius1.28 solar radii
Luminosity2.05 times the Sun
Apparent magnitude9.822
Ageabout 2.92 billion years
Distance from the Sun462.5 light-years (141.8 parsecs)
Position (J2000)RA 144.1194°, Dec -50.4631°
ConstellationVela

Planets (1)

PlanetYearOrbitRadiusMassFound
TOI-677 b11.2 days0.104 AU13.115 R⊕392.2 M⊕Transit, 2020

Values are the NASA Exoplanet Archive’s composite parameters. A radius marked estimated comes from a mass–radius relation; a mass marked minimum is M sin i. Planet sizes and colours in the 3D view are renderings: none of these worlds has been photographed as more than a point of light.

The planets, compared

For a star of 6,295 K, 2.0 times as bright as the Sun, the habitable zone, where starlight could keep water liquid on a rocky surface, runs from about 1.32 to 2.30 AU. None of its known planets orbits inside it. The zone says how much starlight arrives, not whether a planet has water or air. The edges follow Kopparapu et al. (2014), as the 3D view draws them.

The light you see left 463 years ago, around 1560.

Nearest systems to it

Also found by Transiting Exoplanet Survey Satellite (TESS)

Sources

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